Node.js Moment

var moment = require("moment"); 

// From date to moment 
var wrapped = moment(new Date()); 
console.log(wrapped); 

// From moment to date 
var date = wrapped.toDate(); 
console.log(date); 

var moment = require("moment"); 
// From string to date 
console.log(moment("12-25-1995", "MM-DD-YYYY").toDate()); 
console.log(moment("2010-10-20 4:30", "YYYY-MM-DD HH:mm").toDate()); 

var moment = require("moment"); 
/*from   hgci.cn*/
var date = new Date(2010, 1, 14, 15, 25, 50); 
var wrapped = moment(date); 

// "Sunday, February 14th 2010, 3:25:50 pm" 
console.log(wrapped.format(""dddd, MMMM Do YYYY, h:mm:ss a"")); 

// "Sun, 3PM" 
console.log(wrapped.format("ddd, hA")); 

var a = moment([2007, 0, 15]); // 15 Jan 2007 
var b = moment([2007, 0, 16]); // 16 Jan 2007 
var c = moment([2007, 1, 15]); // 15 Feb 2007 
var d = moment([2008, 0, 15]); // 15 Jan 2008 

console.log(a.from(b)); // "a day ago" 
console.log(a.from(c)); // "a month ago" 
console.log(a.from(d)); // "a year ago" 

console.log(b.from(a)); // "in a day" 
console.log(c.from(a)); // "in a month" 
console.log(d.from(a)); // "in a year" 

var date = new Date(Date.UTC(2020, 0, 1)); 
console.log("Original", date); 
// To JSON 
var jsonString = date.toJSON(); 
console.log(jsonString); // 2020-01-01T00:00:00.000Z 
// From JSON 
console.log("Round Tripped",new Date(jsonString)); 

var foo = {}; 
var bar = { "foo": foo }; 
//  hgci.cn
// Uncustomized serialization 
console.log(JSON.stringify(bar)); // {"foo":{}} 

// Customize serialization 
foo.toJSON = function () { return "custom" }; 
console.log(JSON.stringify(bar)); // {"foo":"custom"}